Better Miner Bot

--startup
term.write("Insert Length: ")
Length = tonumber(read())
print(" ")

term.write("Insert - times 3 - Width: ")
Width = tonumber(read())
print(" ")

local Length = Length
local Width = Width

local goRight = 0

local firstStartUp = false
local times_forward = 0
local time_left = 0
local torch_forward = 0
local torchCounter = 0
--slots
local torchSlot = 1
local chestSlot = 2

function firstStartUp()
    Width = Width - 1
    --check if torches and a chest is set
    if turtle.getItemCount(torchSlot) < 1 then
        print("put torches in slot 1!")
        repeat
            sleep (1.1)

        until turtle.getItemCount(torchSlot) > 1
    end
    if turtle.getItemCount(chestSlot) < 1 then
        print("put chestes in slot 2!")
        repeat
            sleep (1.1)
        until turtle.getItemCount(chestSlot) >= 1
    end
    turtle.digDown()
    turtle.select(chestSlot)
    turtle.placeDown()

    -- mine first thing
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    -- ga naar links, dig, naar voren, dig up&down
    turtle.turnLeft()
    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    -- ga naar rechts, vooren, dig up dig up&down
    turtle.turnRight()
    turtle.turnRight()
    turtle.forward()
    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    turtle.turnLeft()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()


    firstStartUp = true
end

function mineForward()
    --ga een vooruit
    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    -- ga naar links, dig, naar voren, dig up
    turtle.turnLeft()
    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    -- ga naar rechts, vooren, dig up dig down
    turtle.turnRight()
    turtle.turnRight()
    turtle.forward()
    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    -- ga weer terug naar midden positie
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()
    times_forward = times_forward + 1
    torch_forward = torch_forward + 1
    doIneedAtorch()
    doIneedToEmpty()
end

function doIneedAtorch()
    --check if torches not empty
    turtle.select(torchSlot)
    if turtle.getItemCount(torchSlot) < 1 then
        turtle.turnLeft()
        turtle.turnLeft()
        for i=1,times_forward do
            turtle.forward()
        end
        print("put torches in slot 1!")
        repeat
            sleep (1.1)
        until turtle.getItemCount(torchSlot) > 1
        turtle.turnLeft()
        turtle.turnLeft()
        for i=1,times_forward do
            turtle.forward()
        end
    end

    --plaats een torch
    if Length > 8 then
        if torch_forward == 8 then
            turtle.select(1)
            turtle.placeDown()
            torchCounter = torchCounter + 1
            torch_forward = 0
        end
    end
    if Length < 8 then
        if torch_forward == Length then
            turtle.select(1)
            turtle.placeDown()
            torchCounter = torchCounter + 1
            torch_forward = 0
        end
    end
end

function doIneedToEmpty()
    turtle.getItemCount(16)
    if turtle.getItemCount(16) > 0 then
        print("gotte go clean my inventory!")
        turtle.turnLeft()
        turtle.turnLeft()
        for i=1,times_forward do
            turtle.forward()
        end

        if time_left == 0 then
            for q=2,16 do
                turtle.select(q)
                turtle.dropDown()
            end
            turtle.turnLeft()
            turtle.turnLeft()
            for i=1,times_forward do
                turtle.forward()
            end
        end

        if time_left >= 1 then
            turtle.turnLeft()
            x = 0
            repeat
                turtle.forward()
                turtle.forward()
                turtle.forward()
                x = x + 1
            until x == time_left

            for q=2,16 do
                turtle.select(q)
                turtle.dropDown()
            end

            turtle.turnLeft()
            turtle.turnLeft()
            x = 0
            repeat
                turtle.forward()
                turtle.forward()
                turtle.forward()
                x = x + 1
            until x == time_left

            turtle.turnRight()

            for i=1,times_forward do
                turtle.forward()
            end



        end
    end
end

function goLeftbyOne()
    turtle.turnRight()
    turtle.forward()

    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    repeat
        turtle.dig()
    until not turtle.detect() == true
    turtle.forward()
    repeat
        turtle.digUp()
    until turtle.up() == true
    turtle.down()
    turtle.digDown()

    turtle.back()

    turtle.turnRight()

    time_left = time_left + 1
end

function everythingDone()
    print("gotte go clean my inventory!")
    turtle.turnLeft()
    turtle.turnLeft()
    for i=1,times_forward do
        turtle.forward()
    end

    if time_left == 0 then
        for q=2,16 do
            turtle.select(q)
            turtle.dropDown()
        end
        print("done with emptieing")
    end

    if time_left >= 1 then
        turtle.turnLeft()
        x = 0
        repeat
            turtle.forward()
            turtle.forward()
            turtle.forward()
            x = x + 1
        until x == time_left

        for q=2,16 do
            turtle.select(q)
            turtle.dropDown()
        end
        turtle.turnRight()
        print("done with emptieing")
    end
end

function goBack()
    turtle.turnLeft()
    turtle.turnLeft()
    for i=1,times_forward do
        turtle.forward()
    end
end


print("Lets GO!")
firstStartUp()

repeat
    repeat
        mineForward()
    until times_forward == Length

    turtle.select(1)
    turtle.placeDown()
    torchCounter = torchCounter + 1

    goBack()

    if time_left ~= Width then
        goLeftbyOne()
    end

    times_forward = 0

    if time_left == Width then
        mineForward()
    end

until time_left == Width

mineForward()
everythingDone()

print ("DONE")